Improvement in tube-packings for surface-condensers



J. S. WILSON. Tube-Packing for Surface-Condensers.

No. 221,435. Patented Nov. 11, 1879.

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UNITED STATES PATENT OEEIoE.

JQSEPH SHIELDS WILSON, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN TUBE-PACKINGS FOR SURFACE-CONDENSERS.

Specification forming part of Letters Patent No. 221,435, dated November11, 1879; application filed April 25, 1879.

To all whom it may concern.-

Be it known that I, JOSEPH SHIELDs WIL- SON, of Philadelphia,Pennsylvania, have invented a new and'useful Improvement in Tube- Packings for Surface-Condensers, of whichthe following is a specification.

In the construction of surface-condensers the tubes are liable to moveendwise from their position by continued expansion and contraction.

My improvement is upon the system known as Halls and it consists in animproved gland or cap to be used in connection with-the tubesheet, tube,and packing, the said gland being provided with an annular interiorflange to prevent a creeping or an end movement of the tube, and alsowith a slot, whereby the said gland may be set up or adjusted by meansof a screw-driver or similar tool, as hereinafter more particularlyspecified.

In the accompanying drawings, Figure l is a side elevation of a part ofthe condenser, showing one of the tubes in view and the other insection. Fig. 2 is an end view of the same.

A represents the tube-sheets of the condenser; E, the tubes 5 c, thepacking, of wick or other customary material, which is placed within thepacking-box formed within the tubesheet.

D is the gland which screws upon the packing. Upon the outside end ofthis gland is a flange or lip, h, projecting inward to the thickness ofthe tube, and also a screw-driver slot, lo, cut across said gland. Thisflange h, which prevents the tube from creeping out of its position,also provides additional strength of metal where needed, at the slot k,by which the packing is tightened.

The gland is screwed upon the packing so that the flange h is at adistance from the end of the tube suflicient to permit of the usualexpansion, and by means of the flanges at each end the tubes areconfined to their positions in the tube-sheets.

1 do not claim a gland having its end perforated to receive a squareimplement used for setting up said gland; neither do I claim a slottedgland unprovided with an interior flange to prevent a creeping movementof the tube, since neither of said devices will fully accomplish theresults aimed at by my invention, which are to efl'ect the setting up ofthe tube without involving the use of a speciallyconstructed tool andsacrificing the strength of the gland, and also to prevent the endmovement of said tube; but,

Having described my invention, I claim An improved screw gland or cap tobe used in connection with a tube-sheet, tube, and packing, the saidgland being provided with an annular interior thickened flange toprevent a creeping or an end movement of the tube, and also with a slot,whereby the said gland may be adjusted by means of a screw-driver orsimilar tool, substantially as specified.

J. SHIELDS WILSON.

Witnesses:

EDWD. BROWN, J OHN E. GRANT.

